306
GEARCASE
SHIFT ROD ADJUSTMENT
impeller, and slide water pump down over cam.
Be sure impeller cam does not fall out of position.
IMPORTANT: Make sure the impeller engages
the impeller cam. Serious powerhead damage will
result if impeller cam is not in place.
Align the impeller housing with the gearcase.
Apply Gasket Sealing Compound to threads of the
four impeller housing screws. Install the screws
and tighten to a torque of 60 to 84 in. lbs. (7 to 9.5
N·m).
25 IN. MODELS
Place water tube spacer with grommet on the
impeller housing cover.
IMPORTANT: Before installing gearcase, shift
rod adjustment MUST be checked. Refer to
SHIFT ROD ADJUSTMENT on p. 306.
SHIFT ROD
ADJUSTMENT
Check the shift rod height from the shift rod hole
to the surface of the gearcase using Universal
Shift Rod Height Gauge, P/N 389997.
With the gearcase in NEUTRAL, rotate the shift
rod up or down as necessary for correct adjust-
ment. Once correct height is achieved, rotate rod
one half turn or less to direct offset forward.
IMPORTANT: The NEUTRAL detent is a two-
step design. Make sure the NEUTRAL detent ball
is in the center step before checking shift rod
height.
Shift Rod Heights
1. Sharp edge of drive cam
2. Direction of driveshaft rotation
CO2995
TYPICAL
1. Spacer
2. Grommet
32728
2
1
2
1
COA6166
Model Type Height
20 in. (L)
“S2”
“L”
“L2”
“O”
20 15/16 in.
(20.945 in./ 532 mm)
± 1/2 Half Turn
25 in. (X)
“O”
“M”
“M2”
25 15/16 in.
(25.945 in./ 659 mm)
± 1/2 Turn
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